Nordstrom at North East Mall has a Mother's Room, and yes it is very spacious, clean, and comfortable and there are very comfy padded chairs to sit, with table, nice wall pics, and sufficient lighting.
A big plus with this Nordstrom is that the toilet stalls are separate from the nursing/lounge area.
This Nordstrom has an interactive screen pad on the floor in front of the stroe entrance. If you are shopping with older siblings to your baby, they can walk across it and watch the images, as it makes it appear as though they are kicking leaves, or leaving a trail of sparkles.